DE1729712B2 - INJECTION MOLD FOR INJECTION MOLDING OF PLASTIC, HEAT-TURNABLE MATERIALS - Google Patents

INJECTION MOLD FOR INJECTION MOLDING OF PLASTIC, HEAT-TURNABLE MATERIALS

Info

Publication number
DE1729712B2
DE1729712B2 DE19631729712 DE1729712A DE1729712B2 DE 1729712 B2 DE1729712 B2 DE 1729712B2 DE 19631729712 DE19631729712 DE 19631729712 DE 1729712 A DE1729712 A DE 1729712A DE 1729712 B2 DE1729712 B2 DE 1729712B2
Authority
DE
Germany
Prior art keywords
injection
temperature
nozzle
mold
piece
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
DE19631729712
Other languages
German (de)
Other versions
DE1729712C3 (en
DE1729712A1 (en
Inventor
Yonesaburo Nagoya Kaji Seiho Chita Aichi Shinoda (Japan)
Original Assignee
Kabushiki Kaisha Meiki Seisakusho, Nagoya, Aichi (Japan)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kabushiki Kaisha Meiki Seisakusho, Nagoya, Aichi (Japan) filed Critical Kabushiki Kaisha Meiki Seisakusho, Nagoya, Aichi (Japan)
Publication of DE1729712A1 publication Critical patent/DE1729712A1/en
Publication of DE1729712B2 publication Critical patent/DE1729712B2/en
Application granted granted Critical
Publication of DE1729712C3 publication Critical patent/DE1729712C3/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/18Feeding the material into the injection moulding apparatus, i.e. feeding the non-plastified material into the injection unit
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/26Moulds
    • B29C45/27Sprue channels ; Runner channels or runner nozzles
    • B29C45/2756Cold runner channels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/46Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/47Means for plasticising or homogenising the moulding material or forcing it into the mould using screws
    • B29C45/50Axially movable screw
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/72Heating or cooling
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/72Heating or cooling
    • B29C45/74Heating or cooling of the injection unit
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/72Heating or cooling
    • B29C2045/7278Heating by friction of the moulding material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2021/00Use of unspecified rubbers as moulding material
    • B29K2021/006Thermosetting elastomers

Description

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims (2)

möglichst hoher Einspritzgeschwindigkeii uad hohem Patentansprüche: Einspritzdruck durch die kleine QuerschnittsflächeHighest possible injection speed and high patent claims: Injection pressure due to the small cross-sectional area 1. Spritzgießform zum Spritzgießen von plasti- der Düse 28 und den Einspritzkanal 32 in zwei sehen, wärmehärtbaren Werkstoffen mit einer in Buchsenstücke 46, 47 in den Hohlraum 31 der den Anspritzkanal eingesetzten Einspritzbucnse, 5 Formteile 29, 30 befördert, welche auf einer bed a d u r c h g e k e η η ζ e i c h η e t, daß die Ein- stimmten Temperatur gehalten werden, um das Vd, spritzbuchse aus zwei mit einer ringförmigen kanisieren bzw. Polymerisieren zu bewirken. Wah-Grenzfläche (320 aneinanderstoßenden Buchsen- rend des kurzen Spritzvorgangs entsteht in der Preßstücken (46, 47) besteht, wobei das zur Spritz- masse Reibungswärme, wodurch die Verhartungszeit düse hin gelegene Buchsenstück (46) aus einem io abgekürzt wird. _,„,·-,
wärmeisolierenden Werkstoff besteht Obgleich angestrebt werden sollte, daß die Tempe-
1. Injection mold for injection molding of the plastic nozzle 28 and the injection channel 32 in two see, thermosetting materials with one in socket pieces 46, 47 in the cavity 31 of the injection channel inserted injection bushing, 5 molded parts 29, 30 conveyed, which adurchgeke on a bed η η ζ calibrate η et that the agreed temperature is maintained in order to effect the Vd, injection bushing from two with an annular canize or polymerize. Wah interface (320 butting bushing end of the short injection process is created in which the pressed pieces (46, 47) consists, whereby the bushing piece (46) located towards the injection compound is abbreviated from an io. _, " , -,
heat-insulating material. Although the aim should be that the temperature
2. Spritzgießform nach Anspruch 1, dadurch ratur des eingespritzten Materials im Augenblick gekennzeichnet, daß das zur Spritzdüse hin gele- des Verlassens der Düse 28 so nahe wie möglich bei gene Buchsenstück (46) aus rostfreiem Stahl be- der Temperatur innerhalb des Hohlraumes 31 der steht und in die Grenzfläche (320 eine wärme- 15 Formteile 29, 30 liegt, verbleibt doch eine beträchtisolieiende Packung eingefügt ist. liehe Temperaturdifferenz zwischen beiden. Wenn2. Injection mold according to claim 1, characterized in rature of the injected material at the moment characterized in that leaving the nozzle 28 as close as possible to the spray nozzle gene socket piece (46) made of stainless steel at the temperature within the cavity 31 of the stands and in the boundary surface (320 there is a thermally 15 molded part 29, 30, a considerable amount of insulation remains Pack is inserted. lent temperature difference between the two. if aber die Temperatur auf der Seite der Düse 28 erhöht werden soll, um die Temperatur so dicht wiebut the temperature on the side of the nozzle 28 increases should be as dense as the temperature Die Erfindung bezieht sich auf eine Spritzgießform möglich an die der Form heranzubringen, dann bezum Spritzgießen von plastischen, wärmehärtbaren ao steht die Gefahr, daß ein vorzeitiges Überhitzen und Werkstoffen mit einer in den Anspritzkanal einge- Erhärten des Rohmaterials stattfindet, während ansetzten Spritzbuchse. Beim Spritzgießen von plasti- dererseits der Arbeitsgang des Spritzgießverfahrens sehen, wärmehärtbaren Stoffen bestehen die größten langer dauert, wenn eine größere Temperaturdiffe-Schwierigkeiten darin, daß die Preßmasse durch Er- renz zugelassen wird.The invention relates to an injection mold possible to bring the mold, then bezum Injection molding of plastic, thermosetting ao runs the risk of premature overheating and Materials with a hardening of the raw material in the injection channel takes place while set Spray sleeve. In the case of injection molding from the plastic side, the operation of the injection molding process see, thermosetting substances exist the greatest, lasts longer when there is a greater temperature difference-difficulties in that the molding compound is permitted by Errenz. wärmung erst spritzfähig gemacht werden muß, wo- 25 Da entsprechend der Darstellung in den F i g. 1 bei die günstigste Temperatur jedoch genau innezu- und 2 der Übergangspunkt der Temperatur an der halten ist, weil sonst die Verfestigung (Polymerisa- Grenzfläche 32' zwischen dem zur Düse 28 hin geletion) schnell eintritt. Es ist also die Aufgabe zu lö- genen Buchsenstück 46 und dem anderen Buchsensen, die Preßmasse mit der günstigsten Spritztempe- stück 47 der Einspritzbuchse liegt, kann letztere als ratur so nahe wie möglich an die Form mit der Ver- 30 ein Bestandteil des stationären Formteils 29 gefertigt festigungstemperatur heranzuführen, wobei verhin- werden, wobei es möglich ist, eine gute Temperaturdert werden muß, daß die hohe Formtemperatur differenz zwischen der Form und der Düse 28 zu erüber die Spritzbuchse zur Düse und weiter sich aus- halten, und wobei die Grenzfläche 32' es ermöglicht, breitet. die Temperatur des Buchsenstücks 46 und der Düsewarming must first be made sprayable, where- 25 Since according to the representation in F i g. 1 at the most favorable temperature however exactly innezu- and 2 the transition point of the temperature at the because otherwise the solidification (Polymerisa- interface 32 'between the geletion towards the nozzle 28) occurs quickly. So it is the task to solve the socket piece 46 and the other socket piece, the molding compound with the most favorable injection molding piece 47 of the injection bushing can be used as the latter temperature as close as possible to the mold with the assembly 30 a component of the stationary molded part 29 is made Bring the setting temperature, but be avoided, where it is possible, a good temperaturedert must be that the high mold temperature difference between the mold and the nozzle 28 to erüber the spray socket to the nozzle and beyond, and where the interface 32 'makes it possible spreads. the temperature of the socket 46 and the nozzle Es sind zwar Spritzgießvorrichtungen bekannt, die 35 28 weitgehend der Temperatur des Heizzylinders 2Injection molding devices are known which largely correspond to the temperature of the heating cylinder 2 einteilige oder auch zweiteilige Buchsenstücke zwi- anzugleichen, und zugleich zu verhindern, daßone-piece or two-piece socket pieces to be matched, and at the same time to prevent seilen Düse und Form verwenden. Keiner der Erfin- Wärme von den metallischen Formteilen 29, 30 aufUse the nozzle and mold. None of the invention heat from the metallic moldings 29, 30 on der ist aber auf den Gedanken gekommen, hier eine die Düse 28 übergeht, wenn das Buchsenstück 46 ausBut the thought occurred to him that the nozzle 28 passes over here when the socket piece 46 is off Temperaturbarriere vorzusehen, um die hohen Tem- einem keramischen Baustoff oder aus rostfreiemProvide a temperature barrier to the high temperature a ceramic building material or stainless peraturen der Gußform, die ein schnellstes Erhärten 40 Stahl besteht, wobei in letzterem Fall in die Grenz-temperatures of the casting mold, which consists of the fastest hardening 40 steel, in the latter case in the limit des Werkstoffes herbeiführen sollen, von den in der fläche 32' eine wärmeisolierende Packung, z.B. ausof the material, from which in the area 32 'a heat-insulating packing, e.g. from Presse und Düse vorhandenen, welche für die Plasti- Polytetrafluoräthylen eingefügt wird, um eine Lek-Press and nozzle available, which is inserted for the plastic polytetrafluoroethylene in order to fizierung am günstigsten sind, zu trennen. kage des Rohmaterials bei dem hohen Druck zu ver-fication are most favorable to separate. of the raw material at the high pressure Erfindungsgemäß wird die Aufgabe dadurch ge- meiden. Es ist aber notwendig, daß die Packung inAccording to the invention, the object is thereby avoided. It is necessary, however, that the pack is in löst, daß die Einspritzbuchse aus zwei mit einer ring- 45 diesem Falle in ihrem dichtenden Zustand so gestal-solves that the injection bushing from two with a ring 45 in this case in its sealing state is designed in such a way. förmigen Grenzfläche aneinanderstoßenden Buchsen- tet ist, daß die Wand des Angußtrichters gleichför-shaped interface abutting bushes is that the wall of the sprue cone stücken besteht, wobei das zur Spritzdüse hin ge- mig in die vorbestimmte Verjüngung übergeht,pieces, whereby towards the spray nozzle it merges into the predetermined taper, legene Buchsenstück aus einem wärmeisolierenden Wenn der Einspritzkanal 32 selbst als trennendeput socket piece from a heat-insulating If the injection channel 32 itself as a separating Werkstoff besteht. Wenn dieses Buchsenstück je- Wand zur Verhinderung des Wärmeübergangs dient,Material. If this socket piece is used for each wall to prevent the transfer of heat, doch aus rostfreiem Stahl angefertigt wird, wird in 50 macht es nichts aus, wenn selbst eine bedeutendeYet stainless steel is made in 50 does not matter if even a significant one die Grenzfläche eine wärmeisolierende Packung ein- Temperaturdifferenz zwischen demjenigen Rohmate-the interface a heat-insulating packing a temperature difference between that raw material gefügt. rial, welches sich in dem inneren Buchsenstück 47joined. rial, which is located in the inner sleeve piece 47 Die Erfindung wird an Hand der Zeichnung bei- befindet, und dem in dem zur Düse 28 hin gelegenenThe invention is attached with reference to the drawing, and the one in the direction of the nozzle 28 spielsweise näher erläutert. Es stellt dar Buchsenstück 46 des Einspritzkanals 32 erzeugtfor example explained in more detail. It represents the socket piece 46 of the injection channel 32 produced F i g. 1 einen Längsschnitt durch eine Spritzgieß- 55 wird. Allgemein kann also gesagt werden, daß, wennF i g. 1 is a longitudinal section through an injection molding 55. In general it can be said that if form mit Spritzvorrichtung und als Grenze eine Grenzfläche 32' zwischen beidenform with spray device and as a boundary an interface 32 'between the two Fig.2 einen Längsschnitt durch eine abgewan- Buchsenstücken 46, 47 vorgesehen wird, das zurFIG. 2 shows a longitudinal section through a bushing pieces 46, 47 removed from the flange, which is used for delte Ausführungsform. Düse 28 hin gelegene Buchsenstück 46 mit Rohmate-3rd embodiment. Bushing piece 46 facing the nozzle 28 with raw material Der Durchgang des Rohmaterials in einer Düse 28 rial gefüllt ist, während das gehärtete Produkt in dem steht über einen Einspritzkanal 32 mit einem Hohl- 60 inneren Buchsenstück 47 erzeugt wird. Da die Anraum 31 in Verbindung, der durch einen stationären gußtrichter von dem herzustellenden Produkt räum-Formteil 29 und einem bewegbaren Formteil 30 ge- lieh abgesondert sind, ist es außerordentlich leicht, bildet wird. Eine elektrische Heizvorrichtung 33 ist ein vollkommen gehärtetes Produkt zu erhalten,
in beiden Formteilen 29, 30 vorgesehen; die Tempe- Fig.2 zeigt eine abgewandelte Ausführungsform, ratur der Form wird durch ein nicht dargestelltes Py- 65 wonach das Erhitzen mit Hilfe einer Spule 48 durch rometer geregelt. Das in einem Heizzylinder 2 auf die magnetische Induktion erreicht wird, um eine für die Bildsamkeit günstigste Temperatur gebrachte schnelle und gleichmäßige Erwärmung der Form-Material wird mittels einer Schraubenwelle 1 unter stücke 29, 30 zu ermöglichen.
The passage of the raw material in a nozzle 28 is rially filled, while the hardened product in which stands via an injection channel 32 with a hollow 60 inner bushing 47 is produced. Since the space 31 in connection, which is separated from the product to be manufactured spatial molding 29 and a movable molding 30 borrowed by a stationary pouring funnel, it is extremely easy to form. An electric heater 33 is to obtain a fully cured product,
provided in both mold parts 29, 30; The temperature Fig.2 shows a modified embodiment, the temperature of the form is controlled by a Py-65, not shown, after which the heating with the help of a coil 48 by rometer. That is achieved in a heating cylinder 2 on the magnetic induction, in order to bring a temperature which is most favorable for the plasticity, rapid and even heating of the mold material is made possible by means of a screw shaft 1 under pieces 29, 30.
DE19631729712 1962-11-19 1963-11-08 Injection mold for injection molding of plastic, thermosetting materials, precipitated from 1729704 Expired DE1729712C3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP5167862 1962-11-19
JP5668862 1962-12-13

Publications (3)

Publication Number Publication Date
DE1729712A1 DE1729712A1 (en) 1971-11-25
DE1729712B2 true DE1729712B2 (en) 1973-05-17
DE1729712C3 DE1729712C3 (en) 1973-12-06

Family

ID=26392233

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19631729712 Expired DE1729712C3 (en) 1962-11-19 1963-11-08 Injection mold for injection molding of plastic, thermosetting materials, precipitated from 1729704
DE19631729704 Pending DE1729704A1 (en) 1962-11-19 1963-11-08 Process for molding rubber or similar materials and apparatus for carrying out the process

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE19631729704 Pending DE1729704A1 (en) 1962-11-19 1963-11-08 Process for molding rubber or similar materials and apparatus for carrying out the process

Country Status (2)

Country Link
DE (2) DE1729712C3 (en)
GB (1) GB1023888A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1904034A1 (en) * 1969-01-28 1970-08-06 Rainer Fischer Method and device for producing hollow bodies from thermoplastic material
US4370123A (en) * 1980-02-05 1983-01-25 Occidental Chemical Corporation Apparatus for runnerless injection compression molding of thermosetting materials
EP0066951B1 (en) * 1981-05-15 1985-08-28 Imperial Chemical Industries Plc Process for moulding reinforced curable compositions
US4447386A (en) * 1981-06-29 1984-05-08 Occidental Chemical Corporation Process for runnerless injection - compression molding of thermosetting materials
FR2600586A2 (en) * 1986-06-03 1987-12-31 Maissiat Jean Yves Process enabling large-sized plastic components to be produced
EP0210906A1 (en) * 1985-07-19 1987-02-04 Jean-Yves Maissiat Method for manufacturing plastics parts with great dimensions
IT1291422B1 (en) * 1997-02-25 1999-01-11 Ottogalli Spa INJECTION MOLDING METHOD OF PLASTIC MATERIALS, IN PARTICULAR HOT CROSS-LINKING RESINS SUCH AS ETHYL-VINYL-ACETATE.
CN113320091B (en) * 2021-05-31 2023-08-22 福建泉州市嘉隆模具有限公司 Shoe mold convenient for demolding

Also Published As

Publication number Publication date
GB1023888A (en) 1966-03-30
DE1729712C3 (en) 1973-12-06
DE1729712A1 (en) 1971-11-25
DE1729704A1 (en) 1971-06-16

Similar Documents

Publication Publication Date Title
EP3233413B1 (en) Method for producing an electrical line and tool mould for such a method
DE2633050B2 (en) INJECTION MOLD FOR MANUFACTURING FITTINGS FROM THERMOPLASTIC PLASTICS IN THE URGENT MOLDING PROCESS
EP1377427B1 (en) Method for regulating the contraction of molded parts
DE2060736A1 (en) Injection molding device
EP0761408A1 (en) Method and apparatus for the manufacture of plastic articles
EP0671249A1 (en) Process and device for the production of optical lenses
DE1729712B2 (en) INJECTION MOLD FOR INJECTION MOLDING OF PLASTIC, HEAT-TURNABLE MATERIALS
DE3443715C2 (en) Device for producing a hollow body having an attachment part
DE1964109B2 (en) Multi-part injection mold for molded bodies made of plastic, with a temperature control element arranged along a distribution channel
EP3328608A1 (en) Injection-moulding machine with multi-daylight mould for injection-compression moulding applications and injection-compression moulding process
DE2542875A1 (en) Sprueless injection moulding of thermoplastics - by using the injection nozzle end surface as part of the mould cavity with a restricted diameter inlet
AT503681A2 (en) DEVICE FOR PRODUCING MICROSTRUCTURED SURFACE FORMED PARTS
EP1444083B1 (en) Injection molding machine for the production of elastomer and duromer molded items
EP0874723B1 (en) Injection moulding device
DE3545002A1 (en) Process for injection moulding plastic parts from thermosets
DE731723C (en) Injection molding machine for thermoformable materials
DE3937473C2 (en)
DE1729382B2 (en) DEVICE FOR THE CONTROL OF AN INJECTION MOLDING MACHINE FOR MOLDABLE MASSES
DE2164219C3 (en) Device for producing molded pieces from a molding compound
DE2824729A1 (en) Injection mould esp. for multiple small mouldings - has heated inlet block with heat regenerator near surfaces which cool during contact with mould
WO2018019326A1 (en) Injection moulding device and injection moulding method
EP2746019B1 (en) Device and method for manufacturing workpieces from semifinished fibrous products
DE10013920A1 (en) Injection molding system for elastomers comprises injector for vulcanisable elastomer and heated molding section, channel which feeds elastomer to molds having block of insulating material with central bore mounted at its top
DE1961819A1 (en) Injection screw unit with open nozzle
DE2722842A1 (en) METHOD OF MANUFACTURING A PRODUCT BY COMPRESSION MOLDING FROM A THERMOPLASTIC MATERIAL

Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)